XR21V1410

6

1-CH FULL-SPEED USB UART

REV. 1.1.0

1.3

the V1410 for configuration.

The SDA and SCL are used to specify whether Remote Wakeup and/or Bus Powered configurations are to be

supported. These pins are sampled at power-up. The following table describes how Remote Wakeup and Bus

Powered support.

1.3.1

EEPROM Contents

well as other attributes and maximum power consumption. The EEPROM must contain 8 bytes of data as

specified in Table 3

These values are uploaded from the EEPROM to the corresponding USB Standard Device Descriptor or

Standard Configuration Descriptor. For details of the USB Descriptors, refer to the USB 2.0 specifications.

1.3.1.1

Vendor ID

The Vendor ID value replaces the idVendor field in the USB Standard Device Descriptor.

1.3.1.2

Product ID

The Product ID value replaces the idProduct field in the USB Standard Device Descriptor.

1.3.1.3

Device Attributes

The Device Attributes value replaces the bmAttributes field in the USB Standard Configuration Descriptor. The

default setting in the V1410 device is 0xA0. The bit field definitions are:

SDA

SCL

1

1

No

Self-Powered

1

0

No

Bus-Powered

0

1

Yes

Self-Powered

0

0

Yes

Bus-Powered

EEPROM

0

Vendor ID (LSB)

1

Vendor ID (MSB)

2

Product ID (LSB)

3

Product ID (MSB)

4

Device Attributes

5

Device Maximum Power

6

Reserved

7

Signature of 0x58 (’X’). If the signature is not correct, the contents of the EEPROM are ignored.